Merge branch 'main' into glitch-soc/merge-upstream

Conflicts:
- `.github/workflows/build-image.yml`:
  Upstream switched to pushing to both DockerHub and GitHub Container
  Repository, while glitch-soc was already pushing to the latter only.
  Updated our configuration to be slightly more consistent with upstream's
  naming and styling, but kept our behavior.
- `Gemfile.lock`:
  Updated dependencies textually too close to glitch-soc only hcaptcha
  dependency.
  Updated dependencies as upstream did.
- `README.md`:
  Upstream updated its README, but we have a completely different one.
  Kept our README, though it probably should be reworked at some point.
- `app/views/auth/sessions/two_factor.html.haml`:
  Minor style fix upstream that's on a line glitch-soc removed because
  of its different theming system.
  Kept our file as is.
- `spec/controllers/health_controller_spec.rb`:
  This file apparently did not exist upstream, upstream created it with
  different contents but it is functionally the same.
  Switched to upstream's version of the file.
- `spec/presenters/instance_presenter_spec.rb`:
  Upstream changed the specs around `GITHUB_REPOSITORY`, while glitch-soc
  had its own code because it's a fork and does not have the same default
  source URL.
  Took upstream's change, but with glitch-soc's repo as the default case.
- `yarn.lock`:
  Upstream dependencies textually too close to a glitch-soc only one.
  Updated dependencies as upstream did.

app/views/settings/applications/index.html.haml

@@ -5,7 +5,7 @@
   = link_to t('doorkeeper.applications.index.new'), new_settings_application_path, class: 'button'
 
 - if @applications.empty?
-  %div.muted-hint.center-text=t 'doorkeeper.applications.index.empty'
+  .muted-hint.center-text= t 'doorkeeper.applications.index.empty'
 - else
   .table-wrapper
     %table.table

app/views/settings/applications/show.html.haml

@@ -6,7 +6,7 @@
 .table-wrapper
   %table.table
     %tbody
-      %tr  
+      %tr
         %th= t('doorkeeper.applications.show.application_id')
         %td
           %code= @application.uid
@@ -15,7 +15,7 @@
         %td
           %code= @application.secret
       %tr
-        %th{ rowspan: 2}= t('applications.your_token')
+        %th{ rowspan: 2 }= t('applications.your_token')
         %td
           %code= current_user.token_for_app(@application).token
       %tr

app/views/settings/login_activities/index.html.haml

@@ -6,7 +6,7 @@
 %hr.spacer/
 
 - if @login_activities.empty?
-  %div.muted-hint.center-text
+  .muted-hint.center-text
     = t 'login_activities.empty'
 - else
   .announcements-list